package com.algorithm;

/**
 * @author: sun.hongliang
 * @create: 2019/12/30 11:40
 */
public class TreeNode {
    public int val;
    public TreeNode left;
    public TreeNode right;

    public TreeNode(int x) {
        val = x;
    }

    @Override
    public String toString() {
        return "TreeNode{" +
                "val=" + val +
                '}';
    }
}
